In this article. Retinal detachment is a very serious eye condition that happens when the retina separates from the tissue around it. Since the retina can't work properly under these conditions, you could permanently lose vision if the detached retina isn't repaired promptly.
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Maryland USDA Hardiness Zone Map. Based on the 1990 USDA Hardiness Zone Map, this interactive version covers the state of Maryland which ranges from USDA Zone 5b to USDA Zone 7b. 1990 USDA Hardiness Zone Maps for Neighboring States and Provinces.